Smoking utensil



1,619,387 M 1 1927' L; R. WAUGH SMOKING U'I'ENSIL Filed Oct. 5, 192

MQ/WQ ATTORNEY Patented Mar. 1, 1927.

PATENT OFFICE.-

LESTER R. 'WAUGH, OF MOUN '1. VERNON,.NEW YORK.

SMOKING UTENSIL.

Application filed October 5. 1925. Serial No. 80,477.

The general object of the present invention is to provide smokingutensils, and by that term I mean to include cigarette and cigar holdersand pipes, with simple and effective means for eliminating or renderinginnocuous injurious and objectionable constituents of the smoke fromtobacco or tobacco-like materials, as thesmoke passes to the mouth ofthe smoker.

In carrying out the invention, I incorporate in the smoking utensil inwhich the in-' flow of the smoke, and whereby more time 't'rali'zingnicotine and" other definitely vention is used, .a filter through whichthe smoke is passed and which serves to retain some and render innocuousother harmful or objectionable constituents of the smoke.

-Many proposals have heretofore been made for the incorporation of afilter in smoking utensils, but the filter which I have provided for thepurpose is characterized by the novel provisions made for securing in asimple and effective manner, a large cross sectional area of flowthrough the filter, and a correspondingly low flow velocity, whereby 'Iobtain an effective filter action without creating an objectionableresistance to the is given for chemical action of the filter on thesmoke, and whereby I prolong the usefullife of each filter whichterminates when the filterbecomes so fouled by retained impurities as toimpair its filtering properties, or to undul obstruct the flow ofsmokethrough it. ll ly characterized by the suitable incorporation therein ofmaterial eliminating or neujurious smoke constituents by chemical ac;tion.

formation of many different gaseous and va vapors, volatile bases suchas nicotine, other pyridine bases, pyrol bases and the like. Of theseconstituents those such as mcotine and others which are most deleteriousto the smoker arealkaline and bas'iciin chemical passed a suitablechemical havingacid properties. There are a large number of chemicalshaving acid properties which wllleffectively. neutralize basic:constitrientsfin smoke, but not all of the substances which y improvedfilter is especial- The combustion of tobaccoresults in the arechemically effective are practically suitable. On account of themolsture contained in the atmosphere, materials which are hygroscopic ordeliquescent are unsuitable. The filter material with acid propertiesemployed,'obviously should be one which does not itself give a harmfulor objectionable odor or taste to the smoke. It is practicallydesirable, of course that the material with acid properties which isemployed in the filter should be relatively cheap and easy to procure,and of course, it should be of a character which permits it to bereadily and effectively incorporated in the filter. Filter materialshaving acid properties which I have tried with'satisfactory results,include such acids as boric, salcylic and benzoic acids, and the filtermaterial which I now of fabric orpaper, by coatmg or impregnating thebody with a solution containing said material and then drying the filterin which case the acid crystals formed when the filter; dries areinterspersed through the latter. When the filter is formed in the mannerdescribed, I advantageously line or cover it 'at one'or both sides by aprotectivelayer of thin porous cloth. At the present, I prefer inpractice that the chemical material with acid properties em loyed in thefilter be in the-form of a pow er or mass of fine granules, and be heldbetween layers of fabric. The fabric whi'chI refer to employ isa ratherthick and loose y woven web of wool, wool being somewhat preferabletosilk and.

much superior to cotton for the purpose. In

some cases. I 'may pass the smoke through a filter composed wholly ormainly of a rous massof boric acid granules or the li e, which,preferably, are enclosed in a cloth seek or the like, to. facilitaterenewal of the filter when its, fouling makes renewal desirable; but ingeneral, as already indicated, I

prefer to place a comparatively thin layer of the chemical material withacid properties between layers of woven wool.

The various features of novelty which characterize my invention arepointed out,

with. articularity in the claims annexed to and orming a part of thisspecification. For a better understanding of the invention, however, itsadvantages and specific advantages attained with its use, referenceshould be had tothe accompanying drawings and descriptive matter inwhich I have "illustrated and described preferred embodiresents acigarette holder of tubular form terminating at one end in a mouth-pieceA,

and having a threaded socket at its 0 posite end to receive an end pieceB in w 1011 the cigarette to be Smoked is inserted. The end member Bcomprises a tubular portion B of reduced diameter which extends into thehollow bodyof the holder. Within the holder is placed the filter G whichin this form of my invention is a hollow cylinder coaxial with theholder A and having its end adjacent the mouth-piece A closed asindicated at C, and having its other end open to receive the tubularportion B of the end member B which fits snugly in the cylindricalfilter and assists in positioning the latter. Advantageously, and asshown, the holder A is provided adjacent its mouth-piece end withcenterin lugs A for the closed end of the tubular fi ter The tubularfilter C, as shown, is formed by rolling a web of fabric, which advan-.

tageously is a loosely woven and rather thick piece of woolen cloth,into cylindrical form with a layer D of a suitable chemical hav ing acidproperties such as boricacid, be-

. tween the two layers of the cloth. Of course,

there may be morethan two la ers of cloth and more than one la er of t echemical but ordinarily I consi er a sin 'le layer of chemical betweentwo layers 0 cloth suflicient. The overlapping lon 'tudinal edges of thecloth may ,stitche or asted to the intervening cloth layer. The c osedend C of the filtervmay be'formed in any suitable manner, as, forexample by comp g the correspondm end portion of t e clot employed inthe lter, or by means of a nonporous disc about which the cylindricalbody strips 0 of the cylinder is wound. The parts are proportioned toprovide an annular space between the bod of the cigarette holder and thefilter whic is sufiiciently large in cross section to permit of a freeflow of the smoke outward throu h the filter at all points along thelength of t e body portion of the latter.

The filter shown in Figs. 1 and 2 in addition to the general advantagesand characteristics of the invention, possesses the special advantagesof marked simplicity and effectiveness of construction, and of affordinga relatively very lar e flow area for the smoke, and its cylindricalform is especially desirable moreover, because the tendency of the smoketo form whirling rings when passing through the interior of such afilter. Those rings expand outwardly and their whirling motion prolongsthe time of contact of the smoke with the filter and thereby increasesthe eflicacy of the latter.

In the modified construction shown in Figs. 3 and 4, the barrel or bodyAA of the cigarette holder'is half cut away at one side for the majorportion of its length, the opening being closed by a part Esemi-cylindrical in cross section. The art E is secured to the body partAA at t e end remote from the mouth piece A by the end piece BA which,in this form, is provided with an internally threaded socket receivingend portions of the body part AA and the end member E which unite toform an externally threaded cylinder. At its other end the part Eextends under a cylindrical flange A carried by the member AA, andwhich, advantageously is in the form of a'metal band surrounding theholder. The filter CA' in this construction is a flat pad-like structureclamped at its edges between portions of the parts AA and E. To minimizethe possibility of lealiy joints, the longitudinal edges of the art areprovided with oppositely incline surfacesE which unite wlthcorresponding side ed e surfaces A' of the member AA, to provi ediametrically opposed V- shaped channels opening into the bore of thecigarette holder and in WhlCll the edges'of the filter CA are received.To flSSlSt, in bringing the side edges of the parts E and 115 AA intoproper register and in ,sealing the joints against air leakage, the art'AA is advantageously provided with ongitudinal rib portions A? at theouter edges of the surfaces A which enter rabbets formed for the 120purpose in the member E at the outer edges of t e surfaces E.

The filter CA shown in Figs. 3 and 4, is advantageously formed by tworectangular woolen cloth or other suitable porous fabric with a layer Dof powdered boric acid or the like, between the fabric layers. Thefilter CA divides the chamber space in the cigarette holder into twocompartments a and a. The mouth-piece channel A opens drawn through acigarette held in the end piece BA enters the com artment a through asuitable port E forme in the end portion of the member E.

With the construction shown in Figs. 3

and 4, the filter proper is somewhat simpler in form, and somewhateasier to construct than that shown in Figs. 1 and 2. WVhile the filterCA provides a flow area for the smoke passing through it which isrelatively smaller than is obtainable with the filter C of Figs. 1 and2, the filter CA nevertheless provides a smoke flow path relatively muchlarger in cross section than the transverse section of the bore of theholder. With each form of construction filter renewal may be quickly andeasily efiected, when fouling of the filter makes renewal desirable.

In the modified form of cylindrical filter shown in Fig. 5, threeconcentric cloth layers C C and C are employed. As shown,

each layer is formed of a piece of cloth bent into cylindrical shapewith abutting side edges which may be stitched or pasted together. Thecentral layer C is formed preferably of relatively thick and looselywoven woolen cloth in which acid crystals are deposited by first wettingthe cloth with an acid containing solution and then drying the cloth,whereby the crystals formed as the water content of the solutionevaporates, are interspersed through the cloth. The inner and outercloth layers C and C are advantageously formed of comparatively thin andporous cloth and serve to protect the acid containing intermediate clothlayer from mechanical injury, and to prevent any of the acid crystalsfrom being swept out'of the filter and into the mouth of the smoker withthe smoke stream.

It will be understood of course that the cloth portions of the filters0, GA, and CB are of themselves efiective to arrest dust and condensabletar oil and like vapors in the smoke, and also to arrest some of thenicotine and other positively deleterious constituents of the smoke.Along with a suitable material having acid properties, I may incorporatein the filter other materials to perfume or flavor the smoke.

' While in accordance with the provisions of the statutes I haveillustrated and described the best forms of my invention now known intothe compartment a, while the smoke to me, it will be apparent to thoseskilled in. the art that the general principles of my invention may beembodied in other forms of construction, and I do not wish the claimshereinafter made. to be limited to particular details of constructionand arrangement disclosed herein more than is made necessary by theterms of the claims and by the prior state of the art.

Having now described my invention what I claim as new and desire tosecure by Letters Patent, is:

1. In a smoking utensil comprising a channel through which the smokepasses to the mouth of the user, the improvement which consists in afilter locatedin said channel and comprising acid material adapted toneutralize deleterious basic constituents of the smoke, and layers ofcloth in which said acid material is held such filter providing a pathof smoke flow appreciably larger in cross section than said channel.

2. In a smoking utensil comprising a channel through which the smokepasses to the mouth of the user, the improvement which consists in afilter located in said channel and comprising layers of cloth and boricacid held between said layers of cloth, and providing a path of smokeflow through the filter appreciably larger in cross section than saidchannel.

3. In a smoking utensil comprising a channel through which the smokepasses to the mouth of the smoker, the improvement which consists in afilter located in said channel and comprising a layer of loosely wovenwoolen cloth and afinely divided material in contact with said layer andadapted to neutralize deleterious constituents of the smoke by chemicalaction. I

4. In a smoking utensil comprising a tubular barrel, the improvementwhich consists in a tubular filter axially disposed in the bore of saidbarrel and dividing the latter into a smoke inlet compartment within,and a smoke outlet compartment surrounding said filter, said filterincorporating a material having acid properties adapted to neutralizedeleterious basic constituents of the smoke.

Signed at New York city, in the county of New York, and State of NewYork, this 3rd day of October, A. D. 1925.

LESTER a. WAUGH.

